The Beginning of the End: Water of Mars Promo (video)

The latest promo for Doctor Who: Waters of Mars from today, the 4th of November 2009. The first of the last three specials with David Tennant as the 10th Doctor will be transmitted on Sunday, the 15th of this month on BBC One in the UK at 7pm. It will come to BBC America on the 19th of December at 9pm ET/PT.